CN213752604U - Novel box transformer substation high-voltage fuse - Google Patents
Novel box transformer substation high-voltage fuse Download PDFInfo
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- CN213752604U CN213752604U CN202021964716.0U CN202021964716U CN213752604U CN 213752604 U CN213752604 U CN 213752604U CN 202021964716 U CN202021964716 U CN 202021964716U CN 213752604 U CN213752604 U CN 213752604U
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- contact
- voltage fuse
- fusion tube
- fuse
- insulating rod
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Abstract
The utility model discloses a novel box transformer substation high-voltage fuse, which comprises a fuse tube group; the fusion tube group comprises a fusion tube and an upper moving contact arranged at the top end of the fusion tube; the bottom of the melting tube is provided with a bottom copper hoop and a hinge connected with the bottom copper hoop; the high-voltage fuse further comprises an upper static contact connected to one side of the upper moving contact, one side, far away from the upper moving contact, of the upper static contact is connected with an insulating rod, a lower static contact connected to one side of the lower end of the insulating rod is connected, and one end, far away from the insulating rod, of the lower static contact is connected with the hinge. The utility model discloses the contact mode of sound contact becomes three point contact by traditional line contact, when the fuse switches to the closed condition by the on-off state, circular contact has improved the reliability of contact as long as sink into the pass structure greatly, and this kind of contact also can improve the temperature rise of main loop in service simultaneously. The break current is big, and the cost is still less relatively, adopts novel insulator spindle more effectual to prevent current-back ground, protection current, and the fault rate is low, improves the practicality.
Description
Technical Field
The utility model relates to a high-pressure fusing technical field especially relates to a novel box becomes high-voltage fuse.
Background
The quality of the fuses produced in China has been greatly improved in recent years, and the fuses have been produced and used for over a hundred years from the development history of electric products, even the earliest protective equipment in a power system shows excellent protective characteristics in the power system all the time. The fuse has the advantages of simple structure, safe and reliable action, quick circuit breaking, low price, current limiting capability and the like, so the fuse has wide application in power protection. With the development of industry and electric power industry, new requirements are continuously put on fuses, and the development of the fuses is promoted.
However, to meet the IEC standard, some development and effort is required. In the search for fuses, new insulating materials are being explored, while considering the choice of arc-extinguishing medium, i.e. filler. Meanwhile, the national test standard is continuously improved, and a test research method for developing the fuse is continuously improved, so that a foundation is laid for the rapid development of the fuse. At present, a high-voltage fuse of a box transformer substation in the market adopts a tablet type contact structure, and the structure has the problems of serious ablation of a clamping shell and a single-side structure, low contact reliability, low cost performance, small on-off current, high failure rate and the like in the on-off process.
Based on the above technical problems, a technical person in the art needs to develop a novel high-voltage fuse for a box transformer substation, which has a simple structure, reliable contact of contacts, and lower cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a simple structure, contact are reliable, and the novel case that the cost is lower becomes high-voltage fuse.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model discloses a novel case becomes high voltage fuse, this high voltage fuse includes:
a fused tube group;
the molten tube set includes: a fusion tube;
the upper moving contact is arranged at the top end of the fusion tube;
the bottom of the melting tube is provided with a bottom copper hoop and
a hinge connected to the bottom copper ferrule;
the high-voltage fuse further includes:
the upper fixed contact is connected to one side of the upper moving contact, and the upper moving contact and the upper fixed contact are both circular contacts;
one side of the upper static contact, which is far away from the upper moving contact, is connected with an insulating rod, and the insulating rod can prevent current from flowing back to the ground;
and the lower static contact is connected to one side of the lower end of the insulating rod, and one end, far away from the insulating rod, of the lower static contact is connected with the hinge.
Further, the upper moving contact comprises:
a body;
the pressure releasing cap is arranged at the upper end of the body and used for releasing the pressure in the melting tube;
a circular ring is arranged at one end of the body;
the other end of the body is provided with a short contact which is connected with the upper static contact.
The pressure release cap includes:
copper pipe and
and the pressure release sheet is sleeved on the circumferential surface of the copper pipe.
The fusion tube includes:
the inner layer is a gas producing layer;
the outer layer is an epoxy fiber resin tube and can support the fusion tube.
Further, the upper fixed contact includes:
a transverse plate;
a transverse contact is arranged on one side of the transverse plate;
a spring is arranged at the lower end of the other side of the transverse plate; and
the connecting seat is arranged at the lower end of the spring and is connected with the upper moving contact.
Further, the bottom copper ferrule includes:
a housing;
the groove is used for connecting the fusion tube;
two circular rings are arranged at one end of the shell;
the bottom of the shell is provided with a fixing plate.
Furthermore, the insulating rod is made of TPE insulating materials.
The contact mode of the moving contact and the static contact is changed from line contact to three-point contact, when the fuse is switched from an open state to a closed state, the circular contact only needs to sink into a hole type structure, so that the contact reliability is greatly improved, and meanwhile, the contact can also improve the temperature rise of a main loop in the operation.
In the technical scheme, the utility model provides a pair of novel case becomes high voltage fuse has following beneficial effect:
the utility model discloses a novel contact mode of case becomes high-voltage fuse sound contact becomes three point contact by traditional line contact, when the fuse switches to the closed condition by the on-off state, circular contact has improved the reliability of contact as long as sink into the pass structure greatly, and this kind of contact also can improve the temperature rise of main loop in service simultaneously. The break current is big, and the cost is still less relatively, adopts novel insulator spindle more effectual to prevent current-back ground, protection current, and the fault rate is low, improves the practicality.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
Fig. 1 is a schematic view of the overall structure of a novel box-type transformer substation high-voltage fuse of the present invention;
fig. 2 is a schematic view of an upper static contact of the novel box-type transformer substation high-voltage fuse of the present invention;
fig. 3 is a schematic view of an upper moving contact of the novel box-type transformer substation high-voltage fuse of the present invention;
fig. 4 is a schematic view of a fusion tube group structure of the novel box-type transformer high-voltage fuse of the present invention;
fig. 5 is a schematic view of a bottom copper hoop of the novel box-type transformer high-voltage fuse of the present invention;
fig. 6 is a schematic view of a hinge of a novel box-type transformer substation high-voltage fuse according to the present invention;
FIG. 7 is a schematic view of a pressure relief cap of a novel high-voltage fuse of a box-type substation according to the present invention;
fig. 8 is the utility model discloses a novel case becomes inside schematic diagram of fusion tube of high-voltage fuse.
Description of reference numerals:
1. a fused tube group; 2. an upper static contact; 3. an insulating rod; 4. a lower static contact; 11. a fusion tube;
12. an upper moving contact; 13. a bottom copper hoop; 14. a hinge; 21. a transverse plate; 22. a spring; 23. a horizontal contact; 24. a connecting seat; 111. an inner layer; 112. an outer layer; 121. a pressure release cap; 122. a body;
123. a circular ring; 124. a short contact; 131. a housing; 132. a groove; 133. a connecting ring; 134. a fixing plate; 1211. a copper pipe; 1212. and (5) releasing the tablet.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 6;
the utility model discloses a novel case becomes high voltage fuse, this high voltage fuse includes:
a molten tube group 1;
the molten pipe group 1 includes: a fusion tube 11;
an upper moving contact 12 arranged at the top end of the fusion tube 11;
the bottom of the fusion tube 11 is provided with a bottom copper hoop 13 and
a hinge 14 connected to the bottom copper collar 13;
the high-voltage fuse further includes:
the upper fixed contact 2 is connected to one side of the upper moving contact 12, and both the upper moving contact 12 and the upper fixed contact 2 are circular contacts;
one side of the upper static contact 2, which is far away from the upper moving contact 12, is connected with an insulating rod 3, and the insulating rod 3 can prevent current from flowing back to the ground;
and the lower static contact 4 is connected to one side of the lower end of the insulating rod 3, and one end, far away from the insulating rod 3, of the lower static contact 4 is connected with the hinge 14.
Further, the upper movable contact 12 includes:
a pressure release cap 121, the pressure release cap 121 capable of releasing pressure in the fusion tube 11.
Further, the pressure release cap 121 includes:
and the pressure release sheet 1212 is sleeved on the circumferential surface of the copper pipe 1211.
Further, the fusion tube 11 includes:
an inner layer 111, the inner layer 111 being a gas producing layer;
an outer layer 112, the outer layer 112 being an epoxy fiber resin tube, the outer layer 112 being capable of supporting the fusion tube 11.
Preferably, the insulating rod 3 is made of TPE insulating material.
The current sequentially passes through the elements of the upper static contact 2, the upper moving contact 12 and the lower static contact 4 to form a passage. In the breaking process, the insulating rod 3 cuts off gas generated in the fuse tube 11, the lower end hinge 14 structure pulls out the fuse wire in the fuse tube by the force of the spring to form a visible fracture, and meanwhile, the gas in the fuse tube 11 is sprayed out to extinguish the arc.
In the technical scheme, the utility model provides a pair of novel case becomes high voltage fuse has following beneficial effect:
the utility model discloses a novel contact mode of case becomes high-voltage fuse sound contact becomes three point contact by traditional line contact, when the fuse switches to the closed condition by the on-off state, circular contact has improved the reliability of contact as long as sink into the pass structure greatly, and this kind of contact also can improve the temperature rise of main loop in service simultaneously. The break current is big, and the cost is still less relatively, adopts novel insulator spindle more effectual to prevent current-back ground, protection current, and the fault rate is low, improves the practicality.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (7)
1. The utility model provides a novel case becomes high voltage fuse, its characterized in that, high voltage fuse includes:
a molten tube group (1);
the molten tube group (1) includes: a fusion tube (11);
an upper moving contact (12) arranged at the top end of the fusion tube (11);
the bottom of the fusion tube (11) is provided with a bottom copper hoop (13) and
a hinge (14) connected to the bottom copper collar (13);
the high-voltage fuse further includes:
the upper fixed contact (2) is connected to one side of the upper moving contact (12), and both the upper moving contact (12) and the upper fixed contact (2) are circular contacts;
one side of the upper static contact (2) far away from the upper moving contact (12) is connected with an insulating rod (3);
and the lower static contact (4) is connected to one side of the lower end of the insulating rod (3), and one end, far away from the insulating rod (3), of the lower static contact (4) is connected with the hinge (14).
2. A new type of tank transformer high-voltage fuse as claimed in claim 1, characterized in that said upper movable contact (12) comprises:
a body (122);
a pressure release cap (121) disposed at an upper end of the body (122), the pressure release cap (121) being used to release the pressure in the fusion tube (11);
one end of the body (122) is provided with a circular ring (123);
the other end of the body (122) is provided with a short contact (124), and the short contact (124) is connected with the upper static contact (2).
3. A new type of tank transformer high-voltage fuse as claimed in claim 2, characterized in that said pressure-relief cap (121) comprises:
copper pipe (1211) and
and the pressure release sheet (1212) is sleeved on the circumferential surface of the copper pipe (1211).
4. A new type of tank transformer high-voltage fuse as claimed in claim 3, characterized in that said fusion tube (11) comprises:
an inner layer (111), the inner layer (111) being a gas producing layer;
an outer layer (112), the outer layer (112) being an epoxy fiber resin tube, the outer layer (112) capable of supporting the fusion tube (11).
5. The new tank transformer high-voltage fuse as claimed in claim 1, characterized in that said upper static contact (2) comprises:
a transverse plate (21);
a cross contact (23) is arranged on one side of the transverse plate (21);
a spring (22) is arranged at the lower end of the other side of the transverse plate (21); and
and the connecting seat (24) is arranged at the lower end of the spring (22), and the connecting seat (24) is connected with the upper moving contact (12).
6. A new type of tank transformer high-voltage fuse as claimed in claim 1, characterized in that said bottom copper ferrule (13) comprises:
a housing (131);
a groove (132) for connecting the fusion tube (11);
two circular rings (123) are arranged at one end of the shell (131);
the bottom of the shell (131) is provided with a fixing plate (134).
7. A new type of box transformer high voltage fuse as claimed in claim 1, characterized in that said insulating rod (3) is TPE insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021964716.0U CN213752604U (en) | 2020-09-10 | 2020-09-10 | Novel box transformer substation high-voltage fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021964716.0U CN213752604U (en) | 2020-09-10 | 2020-09-10 | Novel box transformer substation high-voltage fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213752604U true CN213752604U (en) | 2021-07-20 |
Family
ID=76842589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021964716.0U Active CN213752604U (en) | 2020-09-10 | 2020-09-10 | Novel box transformer substation high-voltage fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213752604U (en) |
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2020
- 2020-09-10 CN CN202021964716.0U patent/CN213752604U/en active Active
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